| Abbreviation | Definition |
|---|---|
| PDN | Positive, Drain, and Negative |
| PDR | Polarization Differential Reflectance |
| PDS | Photo Thermal Deflection Spectroscopy |
| PDS | Process Design Specifications |
| PDSA | PeroxyDiSulfuric Acid |
| PDSM | Polar Delta-Sigma Modulation |
| PDST | Pulsed Dipole Sonic Tool |
| PDU | Protocol Data Unit |
| PDV | Portable Digital Video Device |
| PDVC | Phase-Dependent Voltage Contrast |
| PE | PiezoElectric |
| PE | Pin Electronics |
| PE | Power Envelope |
| PE | Professor of Electrical |
| PEAC | Power Electronic Applications Center |
| PEACH | Plumbing Electrical Appliances Cooling Heating |
| PEARL | Professional Electrical Apparatus Reconditioning League |
| PEARL | Pulse Enhancement Artifact Rejection Logic |
| PEARS | Portable Electrical Access Rescue Sys |
| PEB | Post Exposure Bake |